Both parabola and ellipse separating schemes are used to study the solid solubilities for the binary alloy systems based on the 13 rare earth metals. It has been found that the soluble elements can be separated from the insoluble ones by a parabola y(1) = a - bx(1)(2) or an ellipse (x(2)-m)(2)/c(2) + (y(2)-n)(2)/d(2) = 1. The results show that the overall reliabilities of the solid solubilities for the 897 binary alloys based on the rare earth metals are 89.2% and 92.8% for the parabola and ellipse regularities respectively. The constants a and b in the parabola equation, and m, n, c and d in the ellipse equation are discussed, which can be related to some appropriate parameters for each host metal respectively.
部门归属
acad sinica, int ctr mat phys, shenyang 110015, peoples r china. hunan univ, dept phys, changsha 410082, peoples r china.;zhang, bw (reprint author), ccast, world lab, pob 8730, beijing 100080, peoples r china
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